I use big L, it filters out everything that's known not to be radar frequencies used by the police. I would suggest reading the manual because there is a lot of useful information about how radar works and specifics about the V1.

To be honest, there are SO many frequency waves going around that the indicator is always popping - detectors are a waste of money imo. The only time you really need to worry about a cop shooting radar/lidar is when you are on a desolate road where you can actually be pin pointed going the fastest out of all of the vehicles. If you are on any sort of freeway during rush hour or during the day, there is really NO way a cop can pinpoint you going the fastest...unless you are in and out of traffic at 100 mph. But even then, cops will only pace you during the day because it is "target selective". Believe me on this one... I won't say why. hahaha